Home / 51,541.47-71,127.19-28,880.64

Finding the Fourth Proportional to 51,541.47, 71,127.19 and 28,880.64

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Solution

The fourth proportional to 51,541.47, 71,127.19 and 28,880.64 is: 39,855.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,541.47 : 71,127.19 = 28,880.64 : x
  2. Step 2: Convert to fraction form
    51,541.47/71,127.19 = 28,880.64/x
  3. Step 3: Cross multiply
    51,541.47x = 71,127.19 × 28,880.64
  4. Step 4: Simplify right side
    51,541.47x = 2,054,199,164.93
  5. Step 5: Solve for x
    x = 2,054,199,164.93/51,541.47
  6. Step 6: Final answer
    x = 39,855.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.